Portable display monitor



FIG. 1 is a front perspective view of a portable display monitor showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown are included for the purpose of illustrating a portion of the portable display monitor that forms no part of the claimed design. 

The ornamental design for portable display monitor, as shown and described. 